Boosting P-CoMoO3/MoO2 hydrogen evolution via water molecule dissociation by MoO2 and H2 desorption by CoMoO3

The P-CoMoO3/MoO2 heterostructure catalyst exhibits excellent HER performance. Both experimental and DFT results show that MoO2 acts as the water-dissociation promoter, while CoMoO3 favors hydrogen desorption. This work provides a new idea for the design of heterojunction HER catalysts.